College Physics
College Physics
11th Edition
ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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Help with the following question: The second photo is not a question, it’s just to help you solve
Useful information
gravitational acceleration
Gravity
Power
Momentum
Impulse
P =
Newton's 2nd law
AE sys
At
P = F cos 0 vx
Fg = -mg
Ug = mgy
Ap=
1
= 9.8 m/s²
||
→>>
p = mv
Ap
At
个
F(t) dt
dE sys
dt
Tot
→ area under the F-t graph
dp
dt
F
I
t
expand button
Transcribed Image Text:Useful information gravitational acceleration Gravity Power Momentum Impulse P = Newton's 2nd law AE sys At P = F cos 0 vx Fg = -mg Ug = mgy Ap= 1 = 9.8 m/s² || →>> p = mv Ap At 个 F(t) dt dE sys dt Tot → area under the F-t graph dp dt F I t
- Questions
1. Knight P9.60 A 90.0 kg firefighter needs to climb
the stairs of a 20.0 m tall building while carrying a
40.0 kg backpack filled with gear. How much
power does he need to reach the top in 55.0
seconds?
expand button
Transcribed Image Text:- Questions 1. Knight P9.60 A 90.0 kg firefighter needs to climb the stairs of a 20.0 m tall building while carrying a 40.0 kg backpack filled with gear. How much power does he need to reach the top in 55.0 seconds?
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